LM78L15A National Semiconductor, LM78L15A Datasheet

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LM78L15A

Manufacturer Part Number
LM78L15A
Description
Manufacturer
National Semiconductor
Datasheet

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© 2003 National Semiconductor Corporation
LM78LXX Series
3-Terminal Positive Regulators
General Description
The LM78LXX series of three terminal positive regulators is
available with several fixed output voltages making them
useful in a wide range of applications. When used as a zener
diode/resistor combination replacement, the LM78LXX usu-
ally results in an effective output impedance improvement of
two orders of magnitude, and lower quiescent current. These
regulators can provide local on card regulation, eliminating
the distribution problems associated with single point regu-
lation. The voltages available allow the LM78LXX to be used
in logic systems, instrumentation, HiFi, and other solid state
electronic equipment.
The LM78LXX is available in the plastic TO-92 (Z) package,
the plastic SO-8 (M) package and a chip sized package
(8-Bump micro SMD) using National’s micro SMD package
technology. With adequate heat sinking the regulator can
deliver 100mA output current. Current limiting is included to
limit the peak output current to a safe value. Safe area
protection for the output transistors is provided to limit inter-
Connection Diagrams
8-Bump micro SMD
(Bump Side Down)
SO-8 Plastic (M)
(Narrow Body)
Top View
Top View
00774402
00774424
DS007744
nal power dissipation. If internal power dissipation becomes
too high for the heat sinking provided, the thermal shutdown
circuit takes over preventing the IC from overheating.
Features
n LM78L05 in micro SMD package
n Output voltage tolerances of
n Output current of 100mA
n Internal thermal overload protection
n Output transistor safe area protection
n Internal short circuit current limit
n Available in plastic TO-92 and plastic SO-8 low profile
n No external components
n Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V
n See AN-1112 for micro SMD considerations
range
packages
micro SMD Marking Orientation
Plastic Package (Z)
Bottom View
Top View
(TO-92)
±
5% over the temperature
00774433
00774403
www.national.com
May 2003

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LM78L15A Summary of contents

Page 1

... Top View 8-Bump micro SMD Top View (Bump Side Down) © 2003 National Semiconductor Corporation nal power dissipation. If internal power dissipation becomes too high for the heat sinking provided, the thermal shutdown circuit takes over preventing the IC from overheating. Features ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation (Note 5) Input Voltage Storage Temperature ESD Susceptibility (Note 2) LM78LXX Electrical Characteristics applies over 0˚C to 125˚C for SO-8 and TO-92 packages, and −40˚C to 85˚C for micro SMD package. Limits are guaran- teed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods ...

Page 3

LM78LXX Electrical Characteristics applies over 0˚C to 125˚C for SO-8 and TO-92 packages, and −40˚C to 85˚C for micro SMD package. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: ...

Page 4

LM78LXX Electrical Characteristics applies over 0˚C to 125˚C for SO-8 and TO-92 packages, and −40˚C to 85˚C for micro SMD package. Limits are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: ...

Page 5

... Statistical Quality Control (SQC) methods. Unless otherwise specified 40mA 0.33µ LM78L12AC (Continued) Unless otherwise specified 19V IN Symbol Parameter V (Min) Minimum Value of Input Voltage IN Required to Maintain Line Regulation LM78L15AC Unless otherwise specified 23V IN Symbol Parameter V Output Voltage O ∆V Line Regulation O ∆V Load Regulation O I Quiescent Current Q ∆ ...

Page 6

Typical Performance Characteristics Maximum Average Power Dissipation (Z Package) Dropout Voltage Output Impedance www.national.com Peak Output Current 00774414 00774417 00774419 6 00774416 Ripple Rejection 00774418 Quiescent Current 00774420 ...

Page 7

Typical Performance Characteristics Equivalent Circuit (Continued) Quiescent Current 00774421 LM78LXX 7 00774407 www.national.com ...

Page 8

Typical Applications * Required if the regulator is located more than 3" from the power supply filter. * *See (Note 4) in the electrical characteristics table (5V/ OUT Q > ) ≈ ...

Page 9

Typical Applications (Continued) *Solid tantalum. *Solid tantalum 5V (− OUT LM78L05 (R2/R4) for (R2 + R3) = (R4 + R5) OUT A 0.5V output will correspond ...

Page 10

Physical Dimensions NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE NUMBERED COUNTERCLOCKWISE. 5. ...

Page 11

... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number LM78L05ACM, LM78L05ACMX, LM78L12ACM, LM78L12ACMX or LM78L15ACM, LM78L15ACMX Order Number LM78L05ACZ, LM78L09ACZ, LM78L12ACZ, S.O. Package (M) NS Package Number M08A Molded Offset TO-92 (Z) LM78L15ACZ, LM78L62ACZ or LM78L82ACZ NS Package Number Z03A 11 www.national.com ...

Page 12

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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